### P4NSU: Projection-based Pretraining for Nonlinear Sparse Unmixing in Spectral Imaging
The main codes of P4NSU can be seen in [Github](https://github.com/Ryan21wy/P4NSU)
### 🚀 How to Use
You can download this dataset directly in your Python script:
```python
!pip install huggingface_hub -q
from huggingface_hub import snapshot_download
# Download dataset to a local folder called 'P4NSU'
snapshot_download(repo_id="RyanWy/P4NSU", repo_type="dataset", local_dir="./P4NSU")
# Then you can access data like:
# data_path = "./P4NSU/Pigment Dataset/gt.npy"
```
### 🧑💻 Contact
Wang Yue
E-mail: ryanwy@csu.edu.cn
